Strange looking gdalinfo output

Frank Warmerdam warmerdam at POBOX.COM
Sat Dec 17 07:34:02 PST 2005


On 12/16/05, Stephen Davies <sdc at sdc.com.au> wrote:
> I recently purchased a collection of images from the local State
> Government. The images were provided in both ECW and TIF formats.
...
> In particular, the false easting/northing values are swapped and the
> extent lat/long values are quite different.
>
> Could this be a problem with gdalinfo or is the data wrong?

Stephen,

This would appear to be a serious bug in GDAL's ERMapper
coordinate system handling (though it could still be a data
production error).  Could you file  bug on it?   If the files are
too large to provide to me, it would be helpful if you could:

 o Run "listgeo" on the GeoTIFF file and record the results.
    Listgeo is part of the libgeotiff package, and should be
    included in FWTools releases.

 o Run gdalinfo with the "--debug on" commandline switch
    against the ECW file, and record the results.  It should
    include info ERMapper projection and datum name I can
    use.

The bug should be filed in the GDAL Bugzilla.

Best regards,

--
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush    | Geospatial Programmer for Rent



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